The Undertaker shouldn't bring back ABA. Remember how weak he was as ABA? In his last years of his career, The Undertaker should be remembered as The Phenom not the weak human. I mean, come on!!! Defeated cleanly by Maven?! Being Lesnar's b*tch?! Sara got harassed constantly?! Playing second fiddle to Stone Cold, The Rock, Triple H, and Kurt Angle?! Feuding with A-Train and FBI?!

Besides, how many times did The Deadman character was destroyed but keep coming back? The Deadman could die, but not for a long time.

After Orton burned him alive did he return as ABA?

After Khali tore him apart did he return as ABA?

After Henry pummeled him did he return as ABA?

After Edge Vickie banished him did he return as ABA?

After Big Show injured him did he return as ABA?

Precisely.

Taker's career would be far more epic if it was terminated while being the Deadman, which is actually the persona that symbolizes his name and his legacy.